Cambios recientes en los paisajes de los sistemas forestales de España

Investigación agraria. Sistemas y recursos forestales, ISSN 1131-7965, Vol. 8, Nº 1, 1999 (Ejemplar dedicado a: Homenaje a: Prof. José Luis Allué Andrade), pags. 383-398 01/1999; 1.
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En este artículo se presentan resultados parciales obtenidos en un estudio sobre la dinámica de las formaciones forestales de la España mediterránea. Siete cuadrículas de 14 Km2 situadas en clases territoriales representativas de todo el espectro de subtipos fitoclimáticos de Allue (1990), se han estudiado mediante la interpretación diacrónica de fotogramas aéreos, integración y análisis espacial en sistemas de información geográfica. Del análisis de los resultados se concluye que se ha producido una clara polarización en la dinámica evolutiva de las formaciones forestales, con fragmentación y diversificación en las zonas litorales y/o próximas a núcleos urbanos, y homogeneización con extensificación en las más interiores y alejadas de las zonas urbanas, todo ello con independencia de la esencia fitoclimática de las zonas analizadas.

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    • "Landscape structure is the result of past and present interactions between human activities and natural processes (De Aranzabal et al., 2008; Echeverría et al., 2007; Löfman and Kouki, 2003; Naveh and Lieberman, 1994; Serra et al., 2008). Variations in frequency, magnitude and extension of disturbances produce complex patterns in vegetation composition, age structure and patch size distribution over the landscape (Farina, 2006; Regato et al., 1999; Saura, 2010). Thus, the spatial pattern of vegetation, usually assessed by different metrics , allows understanding historical ecological processes and socio-economic factors. "
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    ABSTRACT: Aim of study: Human settlements and activities have completely modified landscape structure in the Mediterranean region. Vegetation patterns show the interactions between human activities and natural processes on the territory, and allow understanding historical ecological processes and socioeconomic factors. The arrangement of land uses in the rural landscape can be perceived as a proxy for human activities that often lead to the use, and escape, of fire, the most important disturbance in our forest landscapes. In this context, we tried to predict human-caused fire occurrence in a 5-year period by quantifying landscape patterns. Area of study: This study analyses the Spanish territory included in the Iberian Peninsula and Balearic Islands (497,166 km2). Material and Methods: We evaluated spatial pattern applying a set of commonly used landscape ecology metrics to landscape windows of 10x10 sq km (4751 units in the UTM grid) overlaid on the Forest Map of Spain, MFE200. Main results: The best logistic regression model obtained included Shannon’s Diversity Index, Mean Patch Edge and Mean Shape Index as explicative variables and the global percentage of correct predictions was 66.3 %. Research highlights: Our results suggested that the highest probability of fire occurrence at that time was associated with areas with a greater diversity of land uses and with more compact patches with fewer edges.
    Forest Systems 04/2013; 22(1):71-81. DOI:10.5424/fs/2013221-02685 · 0.80 Impact Factor
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    10/2005; 14(6):549 - 563. DOI:10.1111/j.1466-822X.2005.00190.x
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